Make product safety
part of your design,
not part of your redesign
|I am no longer actively involved in product development and my expertise is
rapidly becoming obsolete with the imposition of IEC 62368. I still take the opportunity to learn and
discuss developments in the field.|
My object was to provide expert design guidance during the design and
development process for information technology equipment and similar products.
This improves time to market ratios by reducing product approval
iterations. The last thing you want is a bounce for relayout during
the certification phase.
I provide advice during the design cycle,
not generally available from approval agencies. Agencies often avoid providing design advice due commitments which may
result in conflict of interest.
Knowlegeable support can be provided during disputes with certification
Innovative solutions are often provided to save time, space and cost.
Emphasis is placed on knowledge transfer to company employees, to enhance the
company's in house design skills.
Below are a list of opportunities during the product cycle to consider
product safety planning and design alternatives.
- Defining applicable standards
- Creating a project plan for the product safety process
- Identifying required and recommended agency approvals
- Establishing safety related component specifications
- Power entry schemes
- Considering Class I vs. Class II (grounded vs. doubled insulated) designs
- Identifying SELV, TNV, limited power, energy hazard and other circuit types
- Consideration of unusual risks such as software or application problems
- Product safety training
- Meeting enclosure requirements
- Defining plastic flammability needs
- Establishing insulation and spacing needs
- Overcurrent protection, disconnect requirements
- Review during CAD of circuit spacings
- Evaluation of vendor products such as power supplies or subsystems
- Labeling and documentation
- General review of other hazards and requirements
- Hardware review
- Safety testing
Product approval processes:
- Choosing the agencies
- Creating the submission package
- Minimizing agency expenses
- Manufacturer's self testing options
- Use of the IECEE CB Scheme
- Manufacturing test, audit and quality programs
Product failure or review considerations:
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- Risk analysis
- Failure analysis
- Retrofit, recall, repair and similar considerations
- Court actions